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Daily UK grid report
UK Electricity Grid Daily Report — 11 December 2023

On 11 December 2023, Britain’s electricity grid averaged 35.66 GW of grid demand, with renewables averaging 40.8% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 35.66 GW

Average grid demand for this UK day.

Peak demand 43.23 GW

Highest 15-minute grid demand period.

Avg carbon 173 gCO₂/kWh

Average carbon intensity where available.

Renewables 40.8 %

Average renewable share of tracked generation.

Average grid demandDemand
35.66 GWFull-day average from available snapshots
↑ +3.23 GW vs yesterday
Peak demand17:00
43.23 GWHighest 15-minute grid demand period
↑ +2.13 GW vs yesterday
Lowest demand04:30
25.45 GWLowest 15-minute grid demand period
↑ +1.57 GW vs yesterday
Domestic generationSupply
31.72 GWTracked UK generation sources only
↑ +3.78 GW vs yesterday
Average carbonCO₂
173 gCO₂/kWhCarbon intensity average
↑ +77 g vs yesterday
Renewable shareClean
40.8 %Wind, solar, hydro and biomass
↓ −19.2 pts vs yesterday
Clean share+ Nuclear
56.2 %Renewables plus nuclear
↓ −21.0 pts vs yesterday
Net importsFlow
3.55 GWAverage imports minus exports
↓ −0.87 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 11 December 2023, Britain’s electricity grid averaged 35.66 GW of grid demand, with renewables averaging 40.8% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh.

The highest demand period was 43.23 GW at 17:00, while the lowest carbon intensity period was 61 gCO₂/kWh at 00:30.

Key records for 11 December 2023

Highest wind16.19 GW00:00
Highest solar2.58 GW12:00
Highest gas21.11 GW18:00
Lowest carbon61 gCO₂/kWh00:30
Highest imports6.40 GW19:00
Highest exports2.17 GW07:30

Daily chart

Demand, generation and carbon intensity

11 December 2023

Generation mix

Wind, solar, gas and interconnector flow